I just some some 18x10.5 wheels for the rear with 56mm offset and the rear doesnt clear the bump stop. A guy on the other form recommanded the 5/16 spacers to clear the bump stop but now i get only 2-3 turns on the thread count when bolting on the rims? waht can i do to fix this? do i need to get longer studs? or can i do without the spacers if i only lift up the car with the rearend loaded so the rear suspension doesnt drop down to the point that the bump stop hit the inner lip of the rims? Thanks for any reply in advance !!!

My Bad i get like exactly 4.5 turns on each lug

 

is the rear axle "hanging" when you are trying to bolt the wheels on?
if so, try putting a jack under the rear axle and jacking it up till it sits under the car like it would if the car was just sitting on the ground, you understand what i am trying to say?

 

I installed the rims by jacking the rear diff so it is NOT HANGING. but once i try to jack it by the rear side of the car the bump stop would hit the inner side of the rim. Also is 4.5 turns on each lug enough and save? Thanks!